
10 - Enea Frascati
... PROTO-SPHERA, but occur at magnetic Lundquist numbers which are much larger (S~10 8-1013) than the magnetic Lundquist number of PROTO-SPHERA (S~105). Also the range of at which these phenomena occur span a much larger range of values: «in the solar corona, =<1in collapsing magnetized clumps ...
... PROTO-SPHERA, but occur at magnetic Lundquist numbers which are much larger (S~10 8-1013) than the magnetic Lundquist number of PROTO-SPHERA (S~105). Also the range of at which these phenomena occur span a much larger range of values: «in the solar corona, =<1in collapsing magnetized clumps ...
Record in your notes Examples of Electromagnet Uses
... and magnets can exert force on each other. ...
... and magnets can exert force on each other. ...
here
... fields of electrons align with one another. A cluster of atoms with magnetic fields lined up in the same way is known as a magnetic domain. ...
... fields of electrons align with one another. A cluster of atoms with magnetic fields lined up in the same way is known as a magnetic domain. ...
Magnetic Jeopardy
... 18. According to Lenz's law the direction of an induced current in a conductor will be that which tends to produce which of the following effects? a. enhance the effect which produces it b. produce a greater heating effect c. produce the greatest voltage d. oppose the effect which produces it e. pr ...
... 18. According to Lenz's law the direction of an induced current in a conductor will be that which tends to produce which of the following effects? a. enhance the effect which produces it b. produce a greater heating effect c. produce the greatest voltage d. oppose the effect which produces it e. pr ...
Toneev
... ● Until t~1 fm/c the induced magnetic field is defined by spectators only. ● Maximal magnetic field is reached during nuclear overlapping time Δt~0.2 fm/c, then the field goes down exponentially. ...
... ● Until t~1 fm/c the induced magnetic field is defined by spectators only. ● Maximal magnetic field is reached during nuclear overlapping time Δt~0.2 fm/c, then the field goes down exponentially. ...
Magnets and electricity - Rm. E
... Magnetic force: when you bring two magnets together, they exert a push or a pull on each other. Magnetic poles: two magnets can push each other apart because of their ends. Magnetic field: the area surrounding a magnet where magnetic forces can be detected. ...
... Magnetic force: when you bring two magnets together, they exert a push or a pull on each other. Magnetic poles: two magnets can push each other apart because of their ends. Magnetic field: the area surrounding a magnet where magnetic forces can be detected. ...
Bar Magnets
... A magnetic field is a set of vectors found everywhere in space. These vectors describe the interaction between moving charges and other moving charges. What magnetic fields are not … ...
... A magnetic field is a set of vectors found everywhere in space. These vectors describe the interaction between moving charges and other moving charges. What magnetic fields are not … ...
Jan31
... • Electric charges act as sources for generating electric fields. In turn, electric fields exert forces that accelerate electric charges • Moving electric charges constitute electric currents. Electric currents act as sources for generating magnetic fields. In turn, magnetic fields exert forces that ...
... • Electric charges act as sources for generating electric fields. In turn, electric fields exert forces that accelerate electric charges • Moving electric charges constitute electric currents. Electric currents act as sources for generating magnetic fields. In turn, magnetic fields exert forces that ...
Answers
... through the light bulb. This is because A) the coils are too far apart B) the voltage is too low ...
... through the light bulb. This is because A) the coils are too far apart B) the voltage is too low ...
How Can Continents Move?
... • Silt/debris got thicker farther from the ridge • Initially scientists could not explain why ...
... • Silt/debris got thicker farther from the ridge • Initially scientists could not explain why ...
The Ocean Floor
... Age of the oceanic crust vs. age of continental crust Oldest Oceanic Rocks: 180 million years old Oldest Continental Rocks: 3,800 million years old ...
... Age of the oceanic crust vs. age of continental crust Oldest Oceanic Rocks: 180 million years old Oldest Continental Rocks: 3,800 million years old ...
Lesson 2 Magnetism Notes File
... A compass can help determine direction because the north pole of the compass needle points ________. ...
... A compass can help determine direction because the north pole of the compass needle points ________. ...
lecture3_2012 - Earth and Atmospheric Sciences
... Ship tracks across the East Pacific Rise which obtained the magnetic anomalies shown in the next slide. The measurements were made in the 1960’s by the Columbia University research vessel Eltanin. ...
... Ship tracks across the East Pacific Rise which obtained the magnetic anomalies shown in the next slide. The measurements were made in the 1960’s by the Columbia University research vessel Eltanin. ...
17. Maxwell`s Equations
... Different colors of light have different wavelengths (and hence frequencies). But all of them are quite small. Red light has wavelength 700nm while blue light has a shorter wavelength of 475nm. There are electromagnetic waves of all possible wavelengths. Some of them were known before, but were thou ...
... Different colors of light have different wavelengths (and hence frequencies). But all of them are quite small. Red light has wavelength 700nm while blue light has a shorter wavelength of 475nm. There are electromagnetic waves of all possible wavelengths. Some of them were known before, but were thou ...
OCR G485 Definitions
... Fundamental Particles - Particles which cannot be broken down into smaller components. Activity - The number of radioactive decays per unit time. Unit = Becquerels. N.B. 1 Bq = 1s-1 (I decay per second.) Decay Constant, λ - The fraction of atoms decaying in unit time. Half-life - The average time ta ...
... Fundamental Particles - Particles which cannot be broken down into smaller components. Activity - The number of radioactive decays per unit time. Unit = Becquerels. N.B. 1 Bq = 1s-1 (I decay per second.) Decay Constant, λ - The fraction of atoms decaying in unit time. Half-life - The average time ta ...
File
... Ans:- Principle:- A positively charged particle can be accelerated to a sufficiently high energy with the help of smaller values of oscillating electric field by making it cross the same electric field time and again with the use of strong magnetic field. Construction:Construction:- The cyclotron us ...
... Ans:- Principle:- A positively charged particle can be accelerated to a sufficiently high energy with the help of smaller values of oscillating electric field by making it cross the same electric field time and again with the use of strong magnetic field. Construction:Construction:- The cyclotron us ...
Aurora

An aurora is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions. Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere), where their energy is lost. The resulting ionization and excitation of atmospheric constituents emits light of varying colour and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes. Different aspects of an aurora are elaborated in various sections below.